Fire will Freeze x 4

1944 Tower hardcover reissue

cover art by H.J. Hanschel (?)

1947 Dell mapback

map by Ruth Belew

1967 Signet reissue

1987 International Polygonics reissue

cover art by Roger Roth

The Case of the Smoking Chimney x 5

1943  Morrow hardcover

1950 Pocket reissue

2nd book with Gramps Wiggins

cover art by Wayne Blickenstaff

1961 Pocket reissue – cover art by Charles Binger

better image than previously posted

1963 Horwitz edition from Australia

1963 British edition from Penguin

cover art by Sheila Perry